Assuming that the circuit is in the steady state, what is the total energy stored in the two capacitors? j

The total energy stored is the sum of the energy stored in the capacitors. If the capacitors  are series connected capacitors, then the charging current is the same for both capacitors. This means that each capacitor stores the same energy and the stored energy is two times the energy of any of the capacitors.

1/0.14nm = 10^10/1.4 a lot

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